If anyone is interested in hearing more of Joe Kane's thoughts on this he has 4 or 5 articles published over the last year or so on this very topic in Widescreen Review magazine. Pick up a subscription so you can read them.

I WANT better gradation, I HATE seeing those 'steps' in clouds/smoke/shadows etc. see that stuff was the reason I believed CRT was better. I'd also like to see deeper blacks, lower input lag times, and better motion. can't say I've ever sat in front of my 1080p display(even the projector) and wished for higher resolution though. so he's right, simply upping the resolution and nothing else is not a compelling reason to buy a new tv. it's about as relevant as me selling my 64" to buy a 70". sure it's better, mathematically, but it's not so much better that I look at my current display with disgust or am envious of the new one.

For some reason I have a hard believing Rec. 2020 will ever happen in the consumer world. I honestly don't believe we're going to get anything better than what commercial theaters get. This means we probably won't get 12bit 4:4:4 with rec 2020. I think we'll probably see 4:2:2 10bit xvYCC at UHD (3840 x 2160) with H.265 HEVC encoding for our next format. I just don't see companies like Sony making the commercial space have a sub par, or even equivalent, standard compared to the consumer space counterpart.

For some reason I have a hard believing Rec. 2020 will ever happen in the consumer world. I honestly don't believe we're going to get anything better than what commercial theaters get. This means we probably won't get 12bit 4:4:4 with rec 2020. I think we'll probably see 4:2:2 10bit xvYCC at UHD (3840 x 2160) with H.265 HEVC encoding for our next format. I just don't see companies like Sony making the commercial space have a sub par, or even equivalent, standard compared to the consumer space counterpart.

I agree with your logic, and this is why I have very little interest in UHD right now.

the things that are 'needed' for it to be a substantial improvement, would make it much better than commercial theatres and we all know the powers that be in this market won't allow that to happen...

I really think that's too bad though, because commercial theaters are already dead to me. they could have 100 speakers and 4 screens and I still wouldn't want to go to one anymore. the only way these guys will get money from me now is making a physical disc that so compelling i'll pay the 20bux to buy one. of course, I'm pretty far from the target movie audience these days. I don't have a 'bff', take selfies, 'turn up' on the weekends, or carry my phone charger with me 24/7(my charge will last over a week if I need it to).